16923023 has 16 divisors (see below), whose sum is σ = 18922176. Its totient is φ = 15033600.

The previous prime is 16923019. The next prime is 16923031. The reversal of 16923023 is 32032961.

It is a cyclic number.

It is not a de Polignac number, because 16923023 - 2² = 16923019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16922983 and 16923001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16923223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72515 + ... + 72747.

It is an arithmetic number, because the mean of its divisors is an integer number (1182636).

Almost surely, 2^16923023 is an apocalyptic number.

16923023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16923023 is a deficient number, since it is larger than the sum of its proper divisors (1999153).

16923023 is a wasteful number, since it uses less digits than its factorization.

16923023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 16923023 is about 4113.7602020536. The cubic root of 16923023 is about 256.7394746691.

Adding to 16923023 its reverse (32032961), we get a palindrome (48955984).

The spelling of 16923023 in words is "sixteen million, nine hundred twenty-three thousand, twenty-three".